The attorney stopped by E!'s Daily Pop on Tuesday to dish on the nastiest splits and how you can avoid an ill-fated split and why a pre-nuptial agreement is so essential before getting hitched.

"I think prenups are important everywhere and this is the main reason: I don't think couples discuss the contract that they're getting into when they get married...You are entering a contract when you walk down that aisle and people don't even know what the terms are," said Wasser. "They are not communicating about the contract or their expectations."

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As for why some celebrity divorces get so messy, Wasser says it usually happens for two reasons—first, when a couple doesn't have a prenup and when it has to do with child custody because isn't something that's in a prenup.

"One thing that can not be included in a prenup are child custody provisions and that is what sometimes people have big arguments about and that is what is not pre-agreed upon," said the lawyer, who represented Britney Spears in her divorce from Kevin Federline.